diff --git a/snippets/shx-3d-render-input.liquid b/snippets/shx-3d-render-input.liquid
index 30907c6..cdf93c9 100644
--- a/snippets/shx-3d-render-input.liquid
+++ b/snippets/shx-3d-render-input.liquid
@@ -1,5 +1,5 @@
 {% assign content_type = content_type | default: 'body' %}
-{% assign section_id = sectionID | default: 'null' %}
+{% assign section_id = section_id | default: 'null' %}
 
 {% if content_type == 'body' %}